(Closed) Uh, what should I bring/wear for my college reunion

I am trying to pack and have no idea what to bring!! The main class event is a casual BBQ so don’t need anything fancy but still not sure what to wear. My college was very hipster-ish (I was never REALLY hipster)…. IT’s really about hanging with my friends I haven’t seen in forever but I’m still freaking out on what to wear…